amdgpu_ring_write(ring, ib->length_dw);
 }
 
-static void uvd_v7_0_vm_reg_write(struct amdgpu_ring *ring,
-                               uint32_t data0, uint32_t data1)
+static void uvd_v7_0_ring_emit_wreg(struct amdgpu_ring *ring,
+                                   uint32_t reg, uint32_t val)
 {
        struct amdgpu_device *adev = ring->adev;
 
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0));
-       amdgpu_ring_write(ring, data0);
+       amdgpu_ring_write(ring, reg << 2);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0));
-       amdgpu_ring_write(ring, data1);
+       amdgpu_ring_write(ring, val);
        amdgpu_ring_write(ring,
                PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0));
        amdgpu_ring_write(ring, 8);
 
        data0 = (hub->ctx0_ptb_addr_hi32 + vmid * 2) << 2;
        data1 = upper_32_bits(pd_addr);
-       uvd_v7_0_vm_reg_write(ring, data0, data1);
+       uvd_v7_0_ring_emit_wreg(ring, data0, data1);
 
        data0 = (hub->ctx0_ptb_addr_lo32 + vmid * 2) << 2;
        data1 = lower_32_bits(pd_addr);
-       uvd_v7_0_vm_reg_write(ring, data0, data1);
+       uvd_v7_0_ring_emit_wreg(ring, data0, data1);
 
        data0 = (hub->ctx0_ptb_addr_lo32 + vmid * 2) << 2;
        data1 = lower_32_bits(pd_addr);
        /* flush TLB */
        data0 = (hub->vm_inv_eng0_req + eng) << 2;
        data1 = req;
-       uvd_v7_0_vm_reg_write(ring, data0, data1);
+       uvd_v7_0_ring_emit_wreg(ring, data0, data1);
 
        /* wait for flush */
        data0 = (hub->vm_inv_eng0_ack + eng) << 2;
        amdgpu_ring_write(ring, 1 << vmid);
 }
 
+static void uvd_v7_0_enc_ring_emit_wreg(struct amdgpu_ring *ring,
+                                       uint32_t reg, uint32_t val)
+{
+       amdgpu_ring_write(ring, HEVC_ENC_CMD_REG_WRITE);
+       amdgpu_ring_write(ring, reg << 2);
+       amdgpu_ring_write(ring, val);
+}
+
 #if 0
 static bool uvd_v7_0_is_idle(void *handle)
 {
        .pad_ib = amdgpu_ring_generic_pad_ib,
        .begin_use = amdgpu_uvd_ring_begin_use,
        .end_use = amdgpu_uvd_ring_end_use,
+       .emit_wreg = uvd_v7_0_ring_emit_wreg,
 };
 
 static const struct amdgpu_ring_funcs uvd_v7_0_enc_ring_vm_funcs = {
        .pad_ib = amdgpu_ring_generic_pad_ib,
        .begin_use = amdgpu_uvd_ring_begin_use,
        .end_use = amdgpu_uvd_ring_end_use,
+       .emit_wreg = uvd_v7_0_enc_ring_emit_wreg,
 };
 
 static void uvd_v7_0_set_ring_funcs(struct amdgpu_device *adev)